NANOSTRUCTURED MATERIALS FOR ELECTROCHEMICAL CONVERSION REACTIONS

摘要

The disclosure is related to battery systems. More specifically, embodiments of the disclosure provide a nanostructured conversion material for use as the active material in battery cathodes. In an implementation, a nanostructured conversion material is a glassy material and includes a metal material, one or more oxidizing species, and a reducing cation species mixed at a scale of less than 1 nm. The glassy conversion material is substantially homogeneous within a volume of 1000 nm3.

主权项

1. A method of fabricating a battery, the method comprising:
(a) providing a cathode comprising electrochemically active material in electrical communication with the current collector and comprising: (i) a metal component, and (ii) a lithium compound component intermixed with the metal component on a distance scale of about 20 nm or less, wherein the electrochemically active material, when fully charged to form a compound of the metal component and an anion of the lithium compound, has a reversible specific capacity of about 350 mAh/g or greater when discharged with lithium ions at a rate of at least about 200 mA/g; and (b) combining the cathode with an anode and a solid-state electrolyte to form the battery.